Reaction Rates

Rate =

Zero order

First order

Second order

Rate equation

Why would it be unlikely for X reaction to take place in 1 step looking at the rate equation?

Overall order

Rate constant K

K from overall order =1

Methods to produce conc.-time graphs

Analysis by Colorimetry (8)

Purpose of calibration curve

r.o.r from C-t graphs

Orders from C-t graphs

Zero order

K from zero order reaction

First Order

t1/2

t1/2 First Order

K from First Order

t1/2 from K

Rate-% graphs

Orders from rate-% graphs

K from zero order reaction

First order

Rate from First Order rate-%

Second order graph

Determing K from 2nd order rate-% graph

Clock reaction is a method of obtaining

IR=

Iodine clock colour change

Procedure

Rate-determining step

What species are included in the slowest step?

What do the orders match?

Hydrolysis of haloalkane

Effect of T on rate constants

^10c

Graph showing ^ effect

Effects of ^T (2)

Arrhenius equation, exponential form

A

e^-Ea/RT

Arrhenius equation - graphical form

Y = MX + C

A

Ea